SimCom SIM5320AL User Manual

Smart Machine Smart Decision
SIM5320AL_User Manual_V1.01 2014-08-20
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KEYSENSE_N 0 GPIO15
Note: Refer to document [21] for detailed information of Keypad Application Note.
3.8 USB Interface
SIM5320AL module contains a USB interface. This interface is compliant with the USB2.0 specification.
The USB2.0 specification requires hosts such as the computer to support all three USB speeds, namely
low-speed (1.5Mbps), full-speed (12Mbps) and high-speed (480Mbps). USB charging and USB-OTG is
not supported.
Table 20: Electronic characteristic
Pin name
Pin No.
Input voltage scope( V )
Min
Typ
Max
USB_VBUS
11
4.4
5.0
5.25
USB_DP
13
They are compliant with the USB 2.0 specification.
USB_DM
12
3.8.1 Application Guide
Currently SIM5320AL supports the USB suspend and resume mechanism which can help to save power.
If no transaction is on USB bus, SIM5320AL will enter suspend mode. When some events such as voice
call or receiving SMS happen, SIM5320AL will resume normal mode automatically.
Figure 27: USB interface
Because of high bit rate on USB bus, pay attention to influence of junction capacitance of ESD component

SimCom SIM5320AL Specifications

General

Brand	SimCom
Model	SIM5320AL
Category	Control Unit
Language	English